There is some older firmware with quite large fonts (see the group wiki) but the latest firmware by DiSlord and Hugen do not have these large fonts. However the font face has been improved to make it more readable. I suggest you try Hugen's 1.0.69. He just released 1.0.70 (tracking DiSlords firmware development) but I don't know what happened with the fonts in this release.
Roger
Roger Need